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Failure rates of offshore wind transmission systems

Failure rates of offshore wind transmission systems
Failure rates of offshore wind transmission systems

In the offshore wind industry, failures are often costlier than those experienced onshore. Through examination of the literature, it is clear that failures occurring in offshore transmission systems are not well documented. As a result of this, many developers and other parties involved in the planning processes associated with offshore wind farms will defer back to existing reliability metrics in the public domain. This article presents a review of European offshore wind farm transmission failures based on fusing information from multiple public domain sources. The results highlight both the spread of the reliability performance of these assets and the reliability performance over time. The results also reinforce the industry view that installation practices could lead to low reliability in the initial years of operation, resulting in increased repair costs and decreased revenue for wind farm owners and operators. The information collated in the review is also compared to metrics from across the literature to evaluate the difference in forecasted failure rates to those experienced within the industry. In general, it is found that the experienced failure rates are subject to a much higher spread in practice than those published until now.

Offshore, Reliability, Transmission, Wind
1996-1073
Warnock, John
b6b3a229-f277-4719-a9ac-712183fe10df
McMillan, David
53fc20f3-ddc6-42f5-8915-c103febbae5a
Pilgrim, James
4b4f7933-1cd8-474f-bf69-39cefc376ab7
Shenton, Sally
a4e80283-113d-4eac-a31f-ed0a2fe35704
Warnock, John
b6b3a229-f277-4719-a9ac-712183fe10df
McMillan, David
53fc20f3-ddc6-42f5-8915-c103febbae5a
Pilgrim, James
4b4f7933-1cd8-474f-bf69-39cefc376ab7
Shenton, Sally
a4e80283-113d-4eac-a31f-ed0a2fe35704

Warnock, John, McMillan, David, Pilgrim, James and Shenton, Sally (2019) Failure rates of offshore wind transmission systems. Energies, 12 (14), [2682]. (doi:10.3390/en12142682).

Record type: Article

Abstract

In the offshore wind industry, failures are often costlier than those experienced onshore. Through examination of the literature, it is clear that failures occurring in offshore transmission systems are not well documented. As a result of this, many developers and other parties involved in the planning processes associated with offshore wind farms will defer back to existing reliability metrics in the public domain. This article presents a review of European offshore wind farm transmission failures based on fusing information from multiple public domain sources. The results highlight both the spread of the reliability performance of these assets and the reliability performance over time. The results also reinforce the industry view that installation practices could lead to low reliability in the initial years of operation, resulting in increased repair costs and decreased revenue for wind farm owners and operators. The information collated in the review is also compared to metrics from across the literature to evaluate the difference in forecasted failure rates to those experienced within the industry. In general, it is found that the experienced failure rates are subject to a much higher spread in practice than those published until now.

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More information

Accepted/In Press date: 2 July 2019
e-pub ahead of print date: 12 July 2019
Keywords: Offshore, Reliability, Transmission, Wind

Identifiers

Local EPrints ID: 432854
URI: http://eprints.soton.ac.uk/id/eprint/432854
ISSN: 1996-1073
PURE UUID: 7b43017b-f3c9-4c04-9d68-89ed60f601df
ORCID for James Pilgrim: ORCID iD orcid.org/0000-0002-2444-2116

Catalogue record

Date deposited: 31 Jul 2019 16:30
Last modified: 15 Aug 2019 00:43

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